21231333093 has 8 divisors (see below), whose sum is σ = 28369587328. Its totient is φ = 14123650464.

The previous prime is 21231333083. The next prime is 21231333107. The reversal of 21231333093 is 39033313212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21231333093 - 2¹⁴ = 21231316709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21231333093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231333043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7641280 + ... + 7644057.

It is an arithmetic number, because the mean of its divisors is an integer number (3546198416).

Almost surely, 2^21231333093 is an apocalyptic number.

It is an amenable number.

21231333093 is a deficient number, since it is larger than the sum of its proper divisors (7138254235).

21231333093 is a wasteful number, since it uses less digits than its factorization.

21231333093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15285803.

The product of its (nonzero) digits is 8748, while the sum is 30.

The spelling of 21231333093 in words is "twenty-one billion, two hundred thirty-one million, three hundred thirty-three thousand, ninety-three".